Hi Thadeus, possible options here would be to either :
1. Directly access the mashups containing Navigate data onto your mobile platform via the URL of that Mashup
2. For further more responsive mobile platform application e.g. phone or other devices with smaller screens where larger amount of data on Navigate mashup might not fit optimally, you could consider building mobile apps and pull data from ThingWorx via the EDGE SDK e.g. ThingWorx Android Edge SDK
If i get your last use case right you can translate the UI langugage using the Localization table
Hope this'd help.